*{
    padding: 0;
    margin: 0;
    z-index: 1;
}
body{
    background-color: #f7f7ed;
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
}
header{
    position: fixed;
    width: 100%;
    height: 58px;
    z-index: 2;
    background: url(../ingest/daohang.png) repeat-x;
}
header h1{
    float: left;
    height: auto;
    width: 10%;
}
h1{
    text-indent: -99999em;
}
header nav{
    width: 80%;
    height: 58px;
    float: left;
}

header nav a{
    display: block;
    width: 25%;
    height: 100%;
    float: left;
    line-height: 58px;
    text-align: center;
    text-decoration: none;
    color: black;
    font-size: 20px;
    text-align: center;
}
header nav .a1{
    text-decoration: underline;
    color: blue;
}
header nav .a4{
    width: 100px;
    height: 34px;
    margin: 12px 0 0 10px;
    background: #38d774;
    border: 1px solid #3aca7a;
    border-radius:4px ;
    text-align: center;
    font-size: 15PX;
    line-height: 2em;
    color: #e2e4ed;
}
header nav a:hover{
    color:#ffffff;
    text-indent: 2px;
    font-size: 17px;
}
.lou{
    width: 800px;
    height: 400px;
    margin: 0 auto;
    padding-top: 100px;
    overflow: hidden; 
}
.lou ul{
    list-style-type: none;
    width: 500%;
    height: 300px;
}
.lou ul li{
    float: left;
    display: block;
    width: 20%;
    height: 100%;
    position:relative; 
    animation: sssssb 10s infinite;
}
.lou img{
    width: 100%;
    height:100%;
    object-fit: cover;
}
@keyframes sssssb{
    10%{
        right: 0%;
    }
    25%{
        right: 20%;
    }
    50%{
        right: 40%; 
    }
    75%{
        right: 60%;
    }
    80%{
        right: 70%;
    }
    100%{
        right: 80%;
    }
}
.banner{
    width: 100%;
    height: 3000px;
    margin: 0 auto;
    padding-top: 60px;
}   
.banner .box{
    width: 1000px;
    height: 3000px;
    margin: 0 auto; 
}
.banner .box1, .box2, .box3, .box4{
    padding-left: 10px;
}
.banner .box1 img{
    width: 299px;
    height: 299px;
}
.banner .box1{
    width: 300px;
    height: auto;
    margin: 0 auto;
    float: left;
    background-color: #e2e4ed;

}
.banner .box ul{
    list-style-type: none;
}
.banner .box2{
    width: 300px;
    height:auto;
    margin: 0 auto;
    float: left;
    background-color: bisque;
}
.banner .box2 img{
    width: 299px;
    height: 399px;
}
.banner .box3{
    width: 300px;
    height: auto;
    margin: 0 auto;
    float:left;
    background-color: aqua;

}
.banner .box3 img{
    width: 299px;
    height: 499px;
}
.banner .box .box4{
    width: 300px;
    height: auto;
    margin: 0 auto;
    float:left;
    background-color: rgb(29, 31, 31);
}
.banner .box4 img{
    width: 299px;
    height: 399px;
}
.container{
    width: 100%;
    height: 30px;
    margin-top: 50px;
    color: #000;
    text-align: center;
    background-color: antiquewhite;
    bottom: 0;
    z-index: 3;
}
.container ul{
    padding-top: 5px;
}
.kong{
    width: 100%;
    height: 100px;
}